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July 14th, 2026 :: 10:36 am CDT   

Local Weather Report for
Decatur
Illinois, United States

 Current Decatur Weather Conditions Updated July 14th at 9:54 am 
Temperature:82°F Dew Point:68°F
Barometer:30.21 inHg Wind:N 9 Mph
Humidity:61.8% Visibility:0M
 
 Decatur Weather Forecast Summary  
 
Today
Jul 14th
Wednesday
Jul 15th
Thursday
Jul 16th
Friday
Jul 17th
Saturday
Jul 18th
Sunny Sunny Mostly Sunny Thundershowers Mostly Sunny
85°F
87°F
70°F
86°F
72°F
83°F
73°F
85°F
71°F
 
 Decatur Detailed Weather Forecast  
 
Tuesday, July 14th, 2026
Afternoon Temperature: 84°F
Sunny. Slight chance of a thunderstorm.
Evening Temperature: 78°F
Clear. Chance of a thunderstorm.
Wednesday, July 15th, 2026
Overnight Temperature: 71°F
Clear.
Morning Temperature: 77°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 86°F
Sunny. Chance of a thunderstorm.
Evening Temperature: 81°F
Clear. Chance of a thunderstorm.
Thursday, July 16th, 2026
Overnight Temperature: 73°F
Clear. Chance of a thunderstorm.
Morning Temperature: 79°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 86°F
Sunny with a chance of showers or thundershowers.
Evening Temperature: 80°F
Mostly clear with a chance of showers or thundershowers.
Friday, July 17th, 2026
Overnight Temperature: 74°F
Mostly clear with a chance of showers or thundershowers.
Morning Temperature: 78°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 81°F
A mix of cloud and sun with showers likely. Chance of a thunderstorm. Windy at times.
Evening Temperature: 74°F
A mix of cloudy and clear skies with showers likely. Chance of a thunderstorm.
Saturday, July 18th, 2026
Overnight Temperature: 72°F
Mostly clear with a slight chance of showers or thundershowers.
Morning Temperature: 75°F
Mostly sunny with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 84°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 80°F
Clear. Chance of a thunderstorm. Windy at times.
Sunday, July 19th, 2026
Overnight Temperature: 74°F
Clear. Slight chance of a thunderstorm. Windy at times.
Morning Temperature: 77°F
Mostly sunny. Chance of a thunderstorm.
Afternoon Temperature: 86°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 81°F
Mostly clear with a slight chance of showers or thundershowers.
Monday, July 20th, 2026
Overnight Temperature: 75°F
Clear with cloudy periods with a slight chance of showers or thundershowers. Windy at times.
Morning Temperature: 78°F
A mix of cloud and sun with a chance of showers or thundershowers.
Afternoon Temperature: 87°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 81°F
Clear. Chance of a thunderstorm.
Tuesday, July 21st, 2026
Overnight Temperature: 75°F
Mostly clear. Chance of a thunderstorm.
Morning Temperature: 78°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 87°F
Sunny. Chance of a thunderstorm. Windy.
Evening Temperature: 84°F
Clear. Chance of a thunderstorm. Windy at times.
Wednesday, July 22nd, 2026
Overnight Temperature: 78°F
Clear with a slight chance of showers or thundershowers. Windy at times.
Morning Temperature: 74°F
Mostly cloudy with a chance of showers. Slight chance of a thunderstorm.
Afternoon Temperature: 77°F
A mix of cloud and sun.
Evening Temperature: 71°F
Clear with cloudy periods.





 

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This WeatherCity Weather Forecast for Decatur, Illinois, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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